Heat Transfer,Refrigeration and Air Conditioning MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Heat Transfer,Refrigeration and Air Conditioning, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Heat Transfer,Refrigeration and Air Conditioning MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Heat Transfer,Refrigeration and Air Conditioning mcq questions that explore various aspects of Heat Transfer,Refrigeration and Air Conditioning problems. Each MCQ is crafted to challenge your understanding of Heat Transfer,Refrigeration and Air Conditioning principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Heat Transfer,Refrigeration and Air Conditioning MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Heat Transfer,Refrigeration and Air Conditioning. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Heat Transfer,Refrigeration and Air Conditioning knowledge to the test? Let's get started with our carefully curated MCQs!

Heat Transfer,Refrigeration and Air Conditioning MCQs | Page 31 of 40

Q301.
The horizontal and non-uniformly spaced lines on a psychrometric chart indicates
Discuss
Answer: (c).dew point temperature
Q302.
A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be
Discuss
Answer: (b).2.33
Q303.
Which of the following refrigerant is highly toxic and flammable?
Discuss
Answer: (a).Ammonia
Q304.
The unit of Stefan-Boltzmann constant is
Discuss
Answer: (c).Watt/m²K⁴
Q305.
In a vapour compression system, the condition of refrigerant is dry saturated vapour
Discuss
Answer: (a).before entering the compressor
Q306.
An evaporator is also known as
Discuss
Answer: (d).all of these
Q307.
The rate of heat flow through a body is . The term is known as temperature gradient.
Discuss
Answer: (a).Yes
Discuss
Answer: (b).between compressor and condenser
Q309.
In larger industrial and commercial reciprocating compression systems, refrigerent widely used is
Discuss
Answer: (a).ammonia
Q310.
The coefficient of performance of a domestic refrigerator is __________ as compared to a domestic air-conditioner.
Discuss
Answer: (b).less